This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 2 |
| 11 | 4 |
| 12 | 6 |
| 13 | 8 |
| 14 | 10 |
| 15 | 16 |
| 16 | 22 |
| 17 | 31 |
| 18 | 44 |
| 19 | 62 |
| 20 | 88 |
| 21 | 124 |
| 22 | 176 |
| 23 | 248 |
| 24 | 352 |
| 25 | 497 |
| 26 | 702 |
| 27 | 994 |
| 28 | 1406 |
| 29 | 1987 |
| 30 | 2812 |
| 31 | 3975 |
| 32 | 5622 |
| 33 | 7951 |
| 34 | 11244 |
| 35 | 15902 |
| 36 | 22488 |
| 37 | 31804 |
| 38 | 44976 |
| 39 | 63607 |
| 40 | 89954 |
| 41 | 127213 |
| 42 | 179908 |
| 43 | 254427 |
| 44 | 359814 |
| 45 | 508855 |
| 46 | 719628 |
| 47 | 1017709 |